Understanding definitions

Ive printed off material from the module study guide resources (definitions, various acts and a mass of unknown), which I'm preceeding to sift through. Neccessery due to my lack of knowlege on the topic. The definitions are understandable but memorizing them is taking time.

I'm up to cryptography on the book I'm reading, I think its a must read before I tackle the pile of printed material of unknown, which to be honest is jargon to look at currently.

I really want to get a better understanding through the recommened books and resources I ammounted before I research further, so I dont waste my time sourcing/printing and filtering through unworthy material.